Western Flag Iris
(This plant is not on the Australian Noxious Weed List.)
The genus Diplarrena consists of two native evergreen perennial herbs which are endemic to Tasmania, Victoria and just reaching into New South Wales. There is some conjecture that D. latifolia is a more robust form of D. moraea because it is found in an alpine habitat in Tasmania, in other words, the plant expresses itself differently in an alpine climate. Having said that, the Western Flag Iris is sufficiently different from the White Flag Iris of Victoria and New South Wales to be able to tell them apart.
The differences are that the Tasmanian plant has shorter leaves and a thicker clumping structure while the flowers have a much richer colouring at the flower centre. The photographs below are Diplarrena latifolia and Diplarrena moraea (paler colouring).
This plant prefers full sun, grows on a variety of soils, and is frost tolerant. The stiff, erect, dark green, Iris-like leaves are flat and linear in shape, 5 – 10cm wide and 50 – 100cm long. The flowers are held in groups of 2 to 6 but open individually on 100cm long stems. They are delicately fragrant and appear in spring through summer.
Diplarrena is a long-lived clumping plant that responds well to pot culture providing it gets adequate water and fertiliser. It is subject to very few insect or fungal attacks and maintenance consists or removal of dead or unsightly leaves occasionally.
This plant grows readily from seed but the use of smoke treatment will greatly improve results.
0ffered is 10 seeds with Grownotes to assist you succeed.
All seed is posted in bubble wrap protection.
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